JEE Main 22 July 2021 Shift 2 Solved Paper

Section: Physics

Question : 4 of 90

Marks: +1, -0

A porter lifts a heavy suitcase of mass 80kg and at the destination lowers it down by a distance of 80cm with a constant velocity. Calculate the workdone by the porter in lowering the suitcase.
( take g=9.8ms−2)

[22 Jul 2021 Shift 2]

−62720.0J
−627.2J
+627.2J
784.0J

Validate

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